Lubricating apparatus



Jan. 12 1926. 1,569,263

F. S. CARR LUBRICATING APPARATUS Filed March 14 1922 as 6D zywyww Y 6.

5 1 \\\\\\\\%h r w 4 9w. wfifizimm m o 3 e N) 6 F L 7 1 e R l 5 a, a 4 0 .w a n a F 4 l 5 3 Patented Jan. 12,

UNITED STA ES 4 1,569,263 PATENT OFFICE.

FRED S. CARE, OF NEWTON, MASSACHUSETTS, ASSIGNOB TO CARR FASTENER COM- IPANY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE.

LUBRICATING APPARATUS.

Application filed March 14, 1922. Serial No. 543,582. I

To all whom it may concern:

Be it known that I, FRED S. CARR, a citizen of the United States, and resident of Newton, in the county of Middlesex, State of Massachusetts, have invented an Improvement in Lubricating Apparatus, of which the following description, 1n connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention pertains toimprovements in lubricating apparatus. It is among the objects of the invention to provide an im- .proved apparatus ,of that type wherein lubricant under pressure may be quickly and conveniently applied to a plurality of parts to be lubricated.

In the drawings, which show a preferred form of one embodiment of my invention 2-- Figure 1 is a side elevation of a lubricant Fig. 2 is a section on line 2-2 of Fig. 1, showing the relative position of the parts pursuant to passage of the nozzle thereof over a lubricant-receiving part and prior to coupling;

' Fig. 3 is a section on the line 3-3 of Fig. 1, showing the relative position of the parts pursuant to coupling, but prior to valve opening;

Fig. 4 illustrates the relative position of the parts pursuant to valve opening;

Fig. 5 is a diagrammatic view illustrating the parts whereby an interlock is rovided precluding valve opening until a ter coupling is effected;

Fig. 6 includes a side and two end elevations of a coupling part;

Fig. 7 includes a side and two end elevations of a valve part; and

Figs. 8 and 9 are sections on the lines '8-8 and 9-9 respectively of Fig. 2.

Referring to the drawings and to the preferred form of my invention selected for illustrative purposes, I have shown a lubricant gun having a barrel 11, a rear head 12, into which is threaded the usual stem 13 carrying thev usual piston inside of the barrel 11 and also carrying the handle 14. At the discharge end of the gun, I have shown a front head 15 carrying a nozzle 16 at an angle thereto adapted to fit over a lubricantreceiving nipple'30, which may have a square head as illustrated in the co-pending application of Howard J. Murphy and Moses F.

Carr, Serial N 0. 543,643, filed March 14,- 1922. Within the nozzle 16 is a, coupling part 17 presenting projections 18, 18 adapted to bear against thelateral facesfiof the square head of the nipple and containing a seal- 1ng washer 19. The coupling part. 17 is apertured at 20 to permit passage of lubricant therethrough to the lubricant-receiving nipple 30. The coupling part 17 is rotatable within the nozzle 16,'the latter providing flanges 31 adapted to underlie the projections on the nipple formed by the square head thereof.

To effect a tight seal above the coupling part 17, I may provide a lubricant-pressed washer 32 apertured to permit passage of lubricant therethrough to the passage 20.

At an angle,herein shown as a right angle, to the axis of the coupling part 17 and nipple 30, I have shown a valve part 33 contaming. a passage 34 to permit flow of lubricant therethrough when in'open position. In the preferred form of my invention illustrated, the valve 33 can be turned relative to the angled part 35 to open and close the valve, such turning being effected by turning of the lubricant barrel. To this end the head 15 of the barrel 11 is provided with slots 36 engaging pins 37 in the angled part 35, these slots determining the extent of valve opening and closing movement as shown in Fig. 9, and the passage 34 in the valve part 33 is out of line with a cooperating passage 38 in the connecting part 35 when the valve is in closed position, while adapted to register therewith when the valve is in open position. A tight seal may be provided by a spring 40 pressing the Valve part 33 against a seat 41 in the connecting part 35, the spring 40 also preferably pressing against a sealing washer 42 carried by the valve part 33.

To prevent leakage, it isv highly desirable that the valve 33 be not openable until coupling is effected with the lubricant-receiving nipple, and tothis end I have provided an interlock, herein shown as positive, and including a projection on the coupling part 17 which, when the valve 33 is in closed position, can turn into a recess 51 in the valve part. Assuming the nozzle 16 to have been slipped over the square head of the nipple 30, the parts will occupy the relative position shown in Fig. 2. Coupling may now be effectcd by swinging the barrel 11 of the gun to the right until it assumes the position the recess 51 in the valve part, theparts pursuant to coupling occupying the position shown in Fig. 3. The part 50 will no longer interfere with turning of the valve 33 relative to the connecting part 35 and, as the barrel 11 is turned, the valve 33 will turn therewith, without corresponding turning movement of the connecting part 35 until the passages 34 and 38 are in register, as shown in Fig. 4. The valve Will now be open and lubricant may be expelled from the barrel 11 to the desired extent for lubricating purposes. The uncoupling cannot be effected until the valve is closed because, until the valve is closed, the projection 50 on the coupling part 17 will abut against a portion of the'valve part 33. If, however, the valve be closed by turning the barrel 11 in valveclosing direction, the recess 51 will return to the position shown in Fig. 3 and, the valve being closed, uncoupling may be effected by swinging the barrel of the gun laterally from the position shown in dotted lines in Fig. 1 to the position'shown in full lines therein.

The construction illustrated is singularly free fromleakage through the joints reason of the spring and lubricant-pressed seal at 41, the spring and lubricant-pressed cup washer 42 and the sealing washers 19 and 32, these being lubricant-pressed and closing the remaining apertures through which leakage might be effected. I,

Turning of the nozzle 16 relative to the coupling part 17 is limited in both directions by engagement of the projection 50 with the ends of the slot in the connecting part 35, as best shown in Fig. 8, the ends of this slot being so disposed that when the projection 50 is at one end thereof the opening in the nozzle 16 will coincide with the opening in the coupling part 17, andthe other end of said slot being so disposed that when the projection 50 bears thereagainst, the proper overlap of the head of the nipple beyond the shoulders 31 will have been effected.

While I have shown and described a preferred form of one embodiment of my invention, it will be understood that changes involving omission, substitution, alteration and reversal of parts, and even changes in the mode of operation, may be made without departing from the scope of my invention, which is best defined in the following claims.

Claims:

1. Lubricating apparatus comprising, in

combination, a lubricant barrel, a coupling at the discharge end thereof operable by ma- Laeaaes nipulation of said barrel, a valve operativelymale locking means directly interposed between said coupling and said valve to insure a desired sequence of operation of said coupling and said valve.

2. Lubricating apparatus comprising, in combination, a lubricant barrel, and a coupling at an angle thereto and operative by swinging of said barrel in a direction transverse to its axis for coupling engagement with a lubricant-receiving nipple and a valve positively locked against operation until said coupling action has been completed.

3. Lubricating apparatus comprising, in combination, a lubricant barrel, a coupling at an angle thereto and operative by swing- Qing of said barrel in a direction transverse to its axis, and a valve operatively interposed between said barrel and said coupling, said valveaxially aligned with said barrel and operable by turning movement thereof.

4. Lubricating apparatus comprising in combination, a source of lubricant under pressure including a barrel, a rotary valve connected to said barrel and rotatable therewith, a coupling, an angled connecting part between said coupling and said valve, a port through said valve, and a port in said connecting part, said ports movable into and out of communication with each other as said valve is turned relative to said connecting part.

5. Lubricating ap aratus comprising, in combination, a barre a coupling for engagement with a'lubricant-receiving nipple, the axis of said coupling at an angle to the axis of said barrel, said coupling operable by swinging movement of said barrel in a direction transverse to its axis, a valve at an angle to the axis of said coupling and an interlock between said coupling and valve precluding opening of said valve until coupling is effected.

6. Lubricating apparatus comprising, in combination, a barrel, a coupling for engagement with a lubricant-receiving nipple, the axis of said coupling at ail-angle tothe axis of said barrel, said coupling operable by swinging movement of said barrelvin a direction transverse to its axis, a valve at an angle to the axis of said coupling andan interlock between said coupling and valve precluding opening of said valve until coupling iseifected and precluding uncoupling'of said coupling until 'closure of said valve is effected.

In testimony whereof, I have signed my name to this specification.

FRED s. CARR. 

